Image description: The Defense Advanced Research Projects Agency’s (DARPA) “Robbie the Robot” playing a game without human direction. See more examples of how DARPA’s Autonomous Robotic Manipulation (ARM) program is developing software to perform human-level tasks quickly and with minimal direction in this video on YouTube.
Image description: Scientist Dmitry Polyansky examines a vial containing a specialized catalyst designed to help convert solar energy into fuel. Producing clean-burning hydrogen fuel from just sunlight and water requires custom-built catalysts for water oxidation — the part of the water-splitting process that generates oxygen atoms. A tiny amount of the solid catalyst, developed in collaboration with the University of Houston, dissolves and turns the water that lovely shade of blue.
Image description: Do you know there are some places so cold on Earth where water is frozen solid? This includes frozen parts of the ocean, such as waters surrounding Antarctica and the Arctic composing part of the cryosphere. The cryosphere is the part of the Earth’s surface that is frozen for some part of the year. Learn more about the cryosphere.
Photo from the National Oceanic and Atmosphereic Administration’s Satellite and Information Service
In March 2013, the Comet PanSTARRS became visible to the naked eye in the night sky in the Northern Hemisphere. In space, NASA’s STEREO (Solar TErrestrial RElations Observatory) captured an even better view.
This movie, captured by the STEREO-B spacecraft, shows the comet and its fluttering tail as it moves through space. The stationary planet on the right is Earth, and the moving planet on the left is Mercury.
NASA’s Solar Dynamics Observatory has had virtually unbroken coverage of the sun’s rise toward solar maximum, the peak of solar activity in its regular 11-year cycle. This video shows those three years of the sun at a pace of two images per day.
These noteworthy events appear at the following times in the video:
00:30;24 Partial eclipse by the moon
00:31;16 Roll maneuver
01:11;02 August 9, 2011 X6.9 Flare, currently the largest of this solar cycle